Improvement in puivips for driven wells



P; A. sPIcPR.

PUMPS Pon nmvEN-WELLS. No.-170,124. y Patented Nov.1e,1a75.

N.FETES. PHOTO-LITHORAPHBL WASHINGTON. D l)4 BRATT A. sPIcER,oir-MARSHALL, MICHIGAN, AssIGNoR oF ONE-HALF HIs i i RIGHT rroMONTGOMERY cHossMAN, oFsAME PLAGE.'

IMPRQVEMENT'iN PUMPS Foa DRivEN wELLs.

Slpeciiication forming part of Letters Patent No.1`7`0,124, datedNovfimber I6, 1875 application led August 16,1875.

To all whom it mag/concern Be it known tha-tI, PRATT A. SPICER, of

the city of Marshall, State of Michigan, have invented certain new'anduseful Improvements in Pumps, of whichthe following is a full andaccurate description, reference being had to the accompanying drawingandthe letters of reference thereon.

Like letters refer to like parts in the different figures.

and coupled to the section A by means of a plain straight coupling, B.Over each of `these rows of holes z is laid a strip of sheet metal, L.These strips of metal are laid .so close to the surface of O as to leaveAonly a very narrow passage on each side of the strip to the holesz--indeed, are hammered` or pressed so closely'to the surface of G as toserve the 'purpose of a veryiine strainer, and do away with thenecessity of using wire-gauze for covering the openings. Through theseopenings the water at the bottom of the well is admitted to the pump.Inside the pump A is a cylindrical lining, F, of suitable material forapump-cylinder. This lining is secured by turning a ange, t', upon itslower end, which lies be- Y tween the ends of the two adjoining sectionswithin the coupling B, as shown in section in Fig. 2. The filter E isaccurately fitted to the inside of the pump-cylinder F, so that when`pushed into its place, as shown in Fig. 2, it

will be held securely by its friction against the" inside of the pumpcylinder; or, when the pump-cylinder is placed higher up in one -of theupper sections of the pump, a short lining, fitted in the saine manneras the pump-cylinder, may take its place, to which the filter may befitted; or the pump-cylinder may be entirely ldispensed with and thefilter fitted directly to` the main tubing of the pump. The filler is`pierced with holes all around, as shown, and

may .be filledto a with any suitable filtering materials.

threaded at both ends, leaving a short distance plain, on which thevalve d rises and falls easily. The valve-seat n n has passages o c forthe How of the water. Its central portion is screw-threaded internallytolreceive the stem r. The follower o o slips onto the stem r, and issecured in place by the nuts s s. The valve-seat a a has its lower-edgebeveled externally to correspond with the beveled edge of the follower 0o, beveled internally. Between these bevelededges a ring, l, of leather,or other suitable material for packing, is placed and held securely byforcing up the follower o o by means of the nuts s s. The stem r isunited to the pump-roil by means of the small screw-coupling P. Thiscoupling serves the double purpose of uniting the plunger or valve Kwith the pump-rod s, and at the same time forming an adjustable stop forthe valve d. The throw of the valve may be regulated by loosening thenuts s s and screwing the valveseat n n up or down on its stem. Gr is asolid metallic point screwed into the bottom of the casing C forpiercing the earth when used for a driven well, or for the pump to restupon in an ordinary dug well. p

I am aware that metallic strips have before been used to partially coverthe holes in points or casin gs of driven pumps; but these have beenused only as mere protections to the gauze covering of the holes, andhave not been arranged in any such manner, or withany design to serve asstrainers, while, with my arrangement, they form a strainer elfectuallyex 'cluding even the finest sandpwhich a Wirei OFFICE.

y The space above a. is left clear for .water-room. The top of theilteriis closed some, and often expensive, process of drawing up theentire pump. I therefore do not, broadly, claim a filter.

I am aware that pump-plungers or buckets having a leather ring clampedbetween the two` partsv as a packing have been long in use; but thefaces between which the packing materials have heretofore been placedhave been plane at surfaces with sharp square edges, necessitating thebending of the leather at right angles, and causing it to crimp badly,and at the same time liable to cut the packing. Mine, being beveled,brings the leather into shape before being introduced into the .pump,with no liability to cutting on sharp i Heretofore the stop for thevalve d has been l made by welding a collar or lug upon the stein r. Iplace the coupling I in a new position, so that it takes the place of avalvestop, costing nothing, from the fact that a coupling is in allcases necessary. In this way I dispense with the expensive collar, usingthe coupling instead. Having thus described my inventiomwhat I claim asnew, and desire to secure by Letters Patent, is, viz:

1. The combination, with the casing C, having verticalV rows of holes z,of the metallic strips L, laid close to the casing over the holestherein, and leaving a narrow passage on both sides of each strip forthe passage ofthe water to the holes, substan tially as herein shown anddescribed.

2. lThe combination of the valve d of a pumpplunger with the adjustablescrew-coupling P, to form an adjustable stop for the valve, substantially as shown and described.

PRATT A. SPIGER. Witnesses:

N. A. BRooKs, JAMES N. ROBINSON.

